<nav id="nav" class="clearfix">
<ul id="nav-page">
	<li<?php if ( is_front_page() ) echo ' class="current_page_item"'; ?>><a href="<?php echo get_option('home'); ?>/"><span>Home</span></a></li>
	<?php 
	$pages = wp_list_pages('sort_column=menu_order&title_li=&echo=0');
	$pages = preg_replace('%<a ([^>]+)>%U','<a $1><span>', $pages);
	$pages = str_replace('</a>','</span></a>', $pages);
	echo $pages; 
	?>
</ul>
<? unset($pages); ?> 
<ul id="nav-extra">
	<li class="rss"><a href="<?php bloginfo('rss2_url'); ?>">Full Posts</a>&nbsp; | &nbsp;<a href="<?php bloginfo('comments_rss2_url'); ?>">Comments</a></li>
	<li class="email"><a href="#">By Email</a></li>
</ul> 
</nav> 